Assert when exiting a MDI app

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   Hello,

sometimes, when I close my app, I got an ASSERT :

#ifdef _DEBUG
void CHandleMap::RemoveHandle(HANDLE h)
{
 // make sure the handle entry is consistent before deleting
 CObject* pTemp = LookupTemporary(h);
 if (pTemp != NULL)
 {
  // temporary objects must have correct handle values
  HANDLE* ph = (HANDLE*)((BYTE*)pTemp + m_nOffset);  // after CObject
  ASSERT(ph[0] == h || ph[0] == NULL);
  if (m_nHandles == 2)
   ASSERT(ph[1] == h);    <<<<<<
 }

The stack is like :

> mfc80d.dll!CHandleMap::RemoveHandle(void * h=0xb8012aca)  Line 218 + 0x1e bytes C++
  mfc80d.dll!CDC::Detach()  Line 122 C++
  mfc80d.dll!CClientDC::~CClientDC()  Line 1034 + 0x8 bytes C++
  STBSim.exe!CXTPToolBar::CalcDockingLayout(int nLength=1499, unsigned long dwMode=11, int nWidth=0)  Line 746 + 0x2f bytes C++
  STBSim.exe!CXTPDockBar::_AdjustRow(CArray<CXTPToolBar *,CXTPToolBar *> & arrRow={...}, CPoint pt={...}, int nLength=1499, int bHorz=2, AFX_SIZEPARENTPARAMS * lpLayout=0x0012d564, int & nRemove=-1)  Line 180 + 0x2d bytes C++
  STBSim.exe!CXTPDockBar::AdjustRow(CArray<CXTPToolBar *,CXTPToolBar *> & arrRow={...}, CPoint pt={...}, int nLength=1499, int bHorz=2, AFX_SIZEPARENTPARAMS * lpLayout=0x0012d564)  Line 343 + 0x24 bytes C++
  STBSim.exe!CXTPDockBar::CalcDynamicLayout(int nLength=1499, unsigned long nMode=11, AFX_SIZEPARENTPARAMS * lpLayout=0x0012df88)  Line 403 + 0x23 bytes C++
  STBSim.exe!CXTPDockBar::OnSizeParent(unsigned int __formal=0, long lParam=1236872)  Line 460 C++
  mfc80d.dll!CWnd::OnWndMsg(unsigned int message=865, unsigned int wParam=0, long lParam=1236872, long * pResult=0x0012d884)  Line 2004 + 0x11 bytes C++

It's a MDI app with 3 open documents / frame windows. 2 different doc types.

Any ideas ?

Thx �n advance,
Alex

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Alex Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 12 May 2004 Status: Offline Points: 54	Post Options Post Reply Quote Alex Report Post Thanks(0) Quote Reply Topic: Assert when exiting a MDI app Posted: 22 June 2007 at 11:18am
	Hello, sometimes, when I close my app, I got an ASSERT : #ifdef _DEBUG void CHandleMap::RemoveHandle(HANDLE h) { // make sure the handle entry is consistent before deleting CObject* pTemp = LookupTemporary(h); if (pTemp != NULL) { // temporary objects must have correct handle values HANDLE* ph = (HANDLE)((BYTE)pTemp + m_nOffset); // after CObject ASSERT(ph[0] == h \|\| ph[0] == NULL); if (m_nHandles == 2) ASSERT(ph[1] == h); <<<<<< } The stack is like : > mfc80d.dll!CHandleMap::RemoveHandle(void * h=0xb8012aca) Line 218 + 0x1e bytes C++ mfc80d.dll!CDC::Detach() Line 122 C++ mfc80d.dll!CClientDC::~CClientDC() Line 1034 + 0x8 bytes C++ STBSim.exe!CXTPToolBar::CalcDockingLayout(int nLength=1499, unsigned long dwMode=11, int nWidth=0) Line 746 + 0x2f bytes C++ STBSim.exe!CXTPDockBar::_AdjustRow(CArray<CXTPToolBar ,CXTPToolBar > & arrRow={...}, CPoint pt={...}, int nLength=1499, int bHorz=2, AFX_SIZEPARENTPARAMS * lpLayout=0x0012d564, int & nRemove=-1) Line 180 + 0x2d bytes C++ STBSim.exe!CXTPDockBar::AdjustRow(CArray<CXTPToolBar ,CXTPToolBar > & arrRow={...}, CPoint pt={...}, int nLength=1499, int bHorz=2, AFX_SIZEPARENTPARAMS * lpLayout=0x0012d564) Line 343 + 0x24 bytes C++ STBSim.exe!CXTPDockBar::CalcDynamicLayout(int nLength=1499, unsigned long nMode=11, AFX_SIZEPARENTPARAMS * lpLayout=0x0012df88) Line 403 + 0x23 bytes C++ STBSim.exe!CXTPDockBar::OnSizeParent(unsigned int __formal=0, long lParam=1236872) Line 460 C++ mfc80d.dll!CWnd::OnWndMsg(unsigned int message=865, unsigned int wParam=0, long lParam=1236872, long * pResult=0x0012d884) Line 2004 + 0x11 bytes C++ It's a MDI app with 3 open documents / frame windows. 2 different doc types. Any ideas ? Thx �n advance, Alex

Oleg Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Joined: 21 May 2003 Location: United States Status: Offline Points: 11234	Post Options Post Reply Quote Oleg Report Post Thanks(0) Quote Reply Posted: 22 June 2007 at 1:27pm
	Hi, Do you have another thread that can cleanup MFC GDI maps?
	Oleg, Support Team CODEJOCK SOFTWARE SOLUTIONS

Alex Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 12 May 2004 Status: Offline Points: 54	Post Options Post Reply Quote Alex Report Post Thanks(0) Quote Reply Posted: 25 June 2007 at 3:15am
	Hello, not really. I have only the main thread which resposible for the GUI. There are other threads, but they are not gui related. BTW, they are not active anymore when the app is about to exit. Do you think a parallel thread is causing the problem ? Alex

Oleg Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Joined: 21 May 2003 Location: United States Status: Offline Points: 11234	Post Options Post Reply Quote Oleg Report Post Thanks(0) Quote Reply Posted: 26 June 2007 at 1:18am
	Hi, Difficult to say without any code :( Send your mainfrm.cpp and full stack to support@codejock.com.
	Oleg, Support Team CODEJOCK SOFTWARE SOLUTIONS